Sen. John KerryJohn Kerry5 reasons Trump's final debate performance sealed his 2016 coffin US pledges to do all it can to fight 'grave threat' of nuclear North Korea Armani, Batali among guests at White House state dinner MORE (D-Mass.) joined Al GoreAl GoreTrump is right, the system is rigged — and it has been for a long time Mark Cuban: Trump’s ‘denying democracy’ Trump: I'll accept election results — if I win MORE this week in blaming Denver's altitude for President Obama's poor performance in the first presidential debate.
"I personally really do believe that the altitude may have had something to do with it," Kerry told the Sante Fe New Mexican.
Gore previously blamed the high altitude for Obama's showing, a claim mocked widely by Republicans and comedians.
Kerry also attributed Obama's "bad night" to indecision on his strategy for his first match-up with GOP nominee Mitt Romney.
"I … think he wasn't settled in his own mind completely on his own strategy," Kerry said. "And I think that held him back. I was surprised, obviously."
Kerry, who played Romney in mock debates against the president, seemed to imply that Obama might have been considering other last-minute approaches to the first debate, since Obama had been on his game the night before.
Kerry was in New Mexico this week to help Rep. Martin HeinrichMartin HeinrichDems to McConnell: Pass 'clean' extension of Iran sanctions Election-year politics: Senate Dems shun GOP vulnerables New thinking on old tech for a secure future MORE (D-N.M.) campaign for the Senate. He said keeping control of the Senate in Democratic hands is critical to preventing the Tea Party from pushing its agenda through Congress.
"The Tea Party is setting the agenda of the United States Congress through [Sen.] Jim DeMint in the Senate and the fear they put into the hearts of their Republican colleagues," he said. "And they block everything. They blocked the farm bill, they blocked the highway bill, they blocked the infrastructure bill, they blocked the veterans' jobs bill recently."