French President Francois Hollande slammed Donald Trump's recent behavior in the presidential race, telling reporters Tuesday the GOP nominee's public comments have made people "feel nauseous."

"A certain number of excesses have ended up making people feel nauseous — even in the United States — especially, as Donald Trump did, when he criticizes the memory of a soldier," Hollande said in a press conference Tuesday. His comment comes in the midst of a feud between Trump and Khizr Khan over the 2004 death in Iraq of his son, who was a U.S. soldier.

"If the Americans choose Trump, that will have consequences, because an American election is a world election," Hollande said. "It could lead to a very strong turn to the right in the world, or to a correction ... the American campaign shows issues that will be reflected in the French campaign."

Hollande could see an insurrection among French citizens in light of Trump's rise among U.S. conservatives. The French president would face a tough re-election battle next spring against the far right leader, Marine Le Pen, if he runs against him.

The French leader said politicians "should be respected when they are respectable."