— here's proof he did
"He pinned much of the blame for the override on Obama himself, however, saying that the White House was too slow to warn about the "potential consequences" of the Justice Against Sponsors of Terrorism Act, known as the 9/11 victims bill.
"Everybody was aware of who the potential beneficiaries were, but nobody really had focused on the downside in terms of our international relationships," McConnell said, claiming that the White House failed to "communicate early about the potential consequences of a piece of legislation that was obviously very popular."
Obama and McConnell spar over 9/11 victims bill to sue Saudi Arabia - Business Insider
Yes, the republican senate leader claims President Obama should have warned him and congress about the legislation he let be voted on and then voted on again to override the president's veto. President Obama did warn them. More proof that republicans are unfit to govern.