I like to read the answers to a Yahoo question before I shape my response, and what concerns me about the answers you got so far seem as if they are largely done by one right-wing extremist reading a script of propaganda.
When our recession-reversing, miracles-working President Obama was elected by a historic landslide victory in 2009, he was handed a horrific multi-faceted nearly fatal GOP-caused mess: a loss of our manufacturing base, the auto industry at death's door, GOP-caused massive deficit that was 10.6% of our GDP, a plunging Dow Jones at 6,900 in 2008, the 2004-2009 collapse of our GOP-deregulated housing and credit markets that cost millions of Americans their homes, the out-of-control price-gouging on gas prices that began with the illegal 2003 invasion of Iraq, an exploding National Debt, the MELTDOWN of our entire financial system due to Republicans' deregulation of banks and Wall Street that took us to the very brink of DEPRESSION, a loss of revenues for our nation's bills-paying must-haves due to the 2001 and 2003 UNPAID FOR (deficit-exploding) tax cuts for the nation's wealthiest 1.5% and our wealthiest corporations...you name it and the 2001-2008 Republican totalitarianism had damaged it.
Our second-most profitable source of revenues all during the GOP totalitarian years 2001-2008---to wit, the per-barrel royalties we are supposed to get from foreign off-shore oil companies drilling in U.S. waters---were being "monitored" by the Bush-appointed and GOP-confirmed OIL INDUSTRY LOBBYISTS put in charge of overseeing off-shore drilling...and yes, the GOP Congress also deregulated the oil industry so they could price-gouge, pollute, and cheat at will. The costly BP (British Petroleum) oil spill happened in our Gulf waters, but the GOP-controlled Congress had limited the amount our nation could collect to a puny $25 million at the request of the oil industry executives (with two oilmen in the White House, of course). President Obama made BP pay for the full amount of the damages they caused, overriding the GOP's unsatisfactory corporate-colluding $25M with a settlement of more than $350 million, and then set up a prepaid EQUITY ACCOUNT from BP to compensate American business owners and the oil rig workers' families. He fired the oil industry lobbyists in charge of the oversight Cabinet department who let the oil company count its own barrels of oil and do their own "safety inspections" (no inspections were done, and thus the BP spill), and appointed people not connected to the oil industry. This is just one way that President Obama undid the nation-destroying actions of the GOP totalitarian years.
The Patient Protection and Affordable Care Act (P.L.111-148) and its supplemental Health Care and Education Reconciliation Act (P.L.111-152), a.k.a., the Affordable Care Act (ACA) or Obama Care, was attacked by lobbyists for the nation's 1300 for-profit greed-driven GOP-deregulated (and therefore corrupt and cruel because there was no oversight) insurance companies---just think of these 1300 spoiled-brat (GOP-deregulated) insurers as candy-loving babies who scream bloody murder when someone tries to take their GOP-given candy (no oversight, no regulations, no consumer protections) away. Obama Care took the candy away and put the power in the hands of the consumers---the Americans who needed to have affordable access to quality health care. Just the "80/20% RULE" that President Obama insisted be included when Congress was hashing out the details is something the insurance industry HATED WITH A PURPLE PASSION, but the American people LOVE---the insurer has to spend at least 80% of every premium dollar you [the consumers] pay ON YOU for actual health care or else the formerly greedy insurer has to REFUND THE DIFFERENCE to you at the end of each year. Read the bill before you quote the insurer-funded propaganda against it.
The Trans-Pacific Partnership trade deal was NOT transferring jobs overseas---it was actually designed to counter China's ongoing aggression (artificial islands in the South China Seas, for example) and unfair trade practices while also opening at least eight NEW ASIAN TRADE MARKETS to American-made goods! You have to actually READ THE DEAL before you parrot the lobby-propaganda against it. The Paris Accord forged by Secretary of State Hillary Clinton, then Bob Kerry and the Obama team was part of the expanded manufacturing jobs base set up by President Obama---designed to make America the WORLD LEADER in the manufacture and marketing of renewable energy products. This effort was insanely BLOCKED by criminally partisan anti-Obama Republicans (led by ornery Mitch McConnell, R-KY) for no good reason other than skin color and huge popularity that the GOP envied.
To learn more about the so-called "conservatives" (alt-right government overthrow extremists) who like to falsely claim our twice-elected President Obama "ruined" the nation that they (the GOP) brought to the very bring of disaster, you might want to read two well-researched books: Robert Draper (2012), "Do Not Ask What Good We Do: Inside the U.S. House of Representatives" and Jane Mayer (2017), "DARK MONEY: The Hidden History of the Billionaires Behind the Rise of the Radical Right."
Successful, popular Democratic Presidents like budget-balancing Bill Clinton (who left office with a huge $362 BILLION SURPLUS from the Democrats' 39% tax rate for wealthy corporations and billionaires) and fellow Leo astrologically Barack Obama scare the living bee-jeebies out of fiscally illiterate "trickle on down" economy-destroying corporate-colluding Republicans whose ongoing efforts to use voter suppression, gerrymandering, fractionalized vote tally for Democrats (putting a decimal in when counting final outcomes, so it takes four votes of Democrats to equal just one vote---see blackbox.voting.org to learn more) might not work to keep the hugely popular Democrats out of power at local, state, and federal levels.
Our nation-saving, economy-growing, auto-industry-rescuing, jobs-creating (14M at least), manufacturing-base-rebuilding (see his recovery.gov website), banks/Wall-Street-reregulating, insurers-reforming, consumers-protecting, revenues-generating, deficit-slashing (from 10.6% of GDP in 2008 to 5.2% by 2012, and still going down), middle-class-strengthening (April 1, 2009 tax cuts for 95% of U.S. workers making less than $250,000/year), borders-securing (NET ZERO illegal migration from 2012 on), criminal-past-illegals-deporting, DACA-signing, immigration-reforms-seeking (shunned by do-nothing GOP Congress), bin-Laden-getting, GOP-treasonous-sabotages-transcending (Draper, 2012)---never once responding in kind, nuclear-nonproliferation-deals-brokering... highly intelligent, incredibly patient, diplomatically gifted, and deeply patriotic President Obama was an absolute GODSEND for this GOP-damaged nation, whether the "conservatives" want to admit it or not.
P.S.: President Obama did NOT add what the right-wing nation-destroying GOP claimed to the National Debt. The costs of BOTH WARS and the unpaid for revenues-losing GOP 2001 and 2003 tax cuts for the wealthiest few, plus the unpaid-for MANDATES passed by the GOP (Medicare Part D, "No Child Left Behind") were kept OFF THE BUDGET BOOKS by the lawless Bush/Cheney administration to try making their troubled economy appear better than was true, so $5.2 TRILLION had to be added into the budget figures in January 2009 just to start from an accurate accounting to fix the God-awful GOP/Bush/Cheney messes.