Trying what? When he took office in 2009, he had all the accumulated Unitary Executive authority accrued under Bush plus direct Treasury Ownership of the six largest banks in the country, plus a Senate supermajority and overwhelming House majority, plus the world’s most powerful military.
What did he do with all this in his first two years? Bailouts for the richest of the rich and Mitt Romney’s solution to insurance industry reform. No mortgage debt relief, despite naked criminal behavior by the banks his US Treasury Department then owned. No student debt relief. No emergency authorization to expand Medicaid and Medicare - something even dumb-dumb Trump happily waved through without Congressional approval by way of the Stafford Act. No immigration reform which he had the votes for but was afraid to pass without Lindsey Graham’s blessing. No climate change bill despite the fact that it was John McCain’s fucking bill, he just didn’t want to pass it without McCain’s official endorsement.
He did not try. He was notable for how much he didn’t do, particularly relative to Bush before and Trump after, because he was afraid of looking bad on cable news shows. He was entirely fixated on his public image, rather than on the real social impact of the administration he was orchestrating.
The GOP blocked the aid
The GOP didn’t block shit. They had no majorities anywhere in government for two full years.
The Super majority in the Senate didn’t even last a full year.
Donald Trump did more with a simple majority than Obama did with 60 votes. And when he lost that majority, he pulled every lever available to the executive branch. Trump was turning out executive orders as fast as his fat little fingers could sign them. Obama couldn’t even be bothered to nominate a full slate of federal judges to fill Bush-Era vacancies.
Finally, he didn’t lose shit in 2016. He wasn’t running
He didn’t try to campaign for Hillary in big swing midwestern states. Given how he was underwater on approval through most of his last year of office, maybe it wasn’t even the worst move. But this was yet another instance in which he just couldn’t be bothered to try.