Comey: Mueller may be in 'fourth quarter' of Russia probe
Kerry: It's a 'mistake' to discuss impeaching Trump right now
"I think that we shouldn't be politicizing it. If you put it in the discussion now you're making something political," Kerry said during an interview on Fox News' "The Daily Briefing."
"I think we have to be really careful and be very analytical about whatever evidence is there. And it's not there yet, because the Mueller investigation really has to run its course and then you can make an evaluation," he added, referring to special counsel Robert Mueller's probe.
The former Obama administration official and 2004 Democratic presidential nominee has been an outspoken critic of Trump's rhetoric and many of his policies.
Kerry suggested on Wednesday that other world leaders are "waiting out" Trump so they can restore diplomatic and economic relationships.
He explained that foreign leaders are likely looking ahead to "what's next" on issues such as trade, NATO and support for the United Nations.
"The kinds of things that really make a difference overall to our position in the world," Kerry said.
Kerry in an interview late last month declined to rule out launching another White House bid, though later said he doubted he'd run run for office again.
Democratic congressional leaders have largely downplayed potential impeachment proceedings against Trump, saying they are not a priority ahead of November's midterm elections. Still, many liberal lawmakers and progressive allies have continued to push for impeachment.
Trump and other Republicans have used the specter of impeachment to encourage GOP voters to turn out in November. The president told supporters at a rally in April that Republicans need to retain control of the House to make sure impeachment doesn't become a reality.
A small group of Democrats has attempted to introduce impeachment articles in the House on two separate occasions. Both efforts failed overwhelmingly.