He won't be on November's ballot, but President Barack Obama is slowly embracing his role as the anti-Trump, taking on the Republican front-runner in ways that no other Democrat can.
With Hillary Clinton and Bernie Sanders still fighting it out in the Democratic primary, the task has fallen increasingly to Obama to articulate the counter-message to Donald Trump, whose ascent to the White House would constitute an overwhelming rebuke to Obama.
Democrats are working hard to use the contrast between Obama and Trump to paint the Republican candidate as anything but presidential.
For months, Obama and his aides mostly avoided getting dragged into the fray or letting the campaign noise distract from Obama's agenda. The White House would sidestep questions about the latest Trump controversies, refusing to turn Obama into a pundit on the race to replace him.
When Obama waded in, it was only to offer implicit rebukes of the Trump phenomenon, such as his assertion in September that "America is great right now" a not-so-veiled reference to the business mogul's campaign promise to "make America great again."
Now the Trump criticism is coming with increasing frequency and ease. Asked Tuesday whether Trump's proposals were already damaging US relations, Obama answered unequivocally: "Yes."
"I am getting questions constantly from foreign leaders about some of the wackier suggestions that are being made," Obama said. "They don't expect half-baked notions coming out of the White House. We can't afford that."
The Democratic National Committee quickly circulated video of Obama's remarks, arguing they illustrated how Trump "simply doesn't have the temperament necessary to be commander in chief."
Yet by calling attention to Trump's positions, the White House risks further elevating him, while giving Obama's critics a fresh reason to get behind the billionaire businessman.
Obama has said repeatedly he doesn't believe Trump will win, and White House officials said there was no concerted effort to insert Obama more visibly into the election debate.
After all, every minute Obama spends talking about Trump is a minute wasted when it comes to Obama's many unfinished pieces of business.
In his latest rebuke, Obama unloaded on Trump's proposal to compel Mexico to pay for a border wall by threatening to cut off remittances that Mexican immigrants in the US send back home.
Asked about that idea, Obama issued a point-by-point rebuttal, arguing that economic hardships in Mexico would actually increase the flow of immigrants into the US and that tracking huge numbers of remittances was impossible.
"Good luck with that," Obama said.
