Wisconsin's Walker exits '16 race with harsh words for Trump

MADISON, WI -- Wisconsin Gov. Scott Walker is exiting the race for president with harsh words for Republican front-runner Donald Trump.

At a news conference Monday in Wisconsin, Walker plans to say he's suspending his White House campaign "so that a positive conservative message can rise to the top of the field."

That's according to prepared remarks released by Walker's campaign.

Walker says he's encouraging other Republicans in the still sizable field to do the same.

He says that's needed so that "voters can focus on a limited number of candidates who can offer a positive conservative alternative to the current front-runner."

While Walker doesn't call out the billionaire real-estate mogul by name, he says offering an alternative to Trump is "fundamentally important" to the future of the GOP and the country.