Clause 2 referenced above gives Congress the power to override presidential vetoes if 2/3 of both Houses agree to do so. In other words, Congress could repeal constitutionally indefensible Obamacare Democratcare without Obama's signature if patriots and former Obama supporters got their acts together and elected the right people to Congress in 2014, 2010 and 2012 being missed opportunities.
And although there are doom-and-gloom freepers who argue that a split Congress could never override a president's veto, Congress has exercised Clause 2 as recently as Bushes 41 & 43, and also with Clinton.
List of United States presidential vetoes
But so-called "conservative" celebrities like Beck, Shapiro, and Obama guard dog Fx News remain silent about Clause 2 which isn't helping the nation.