Democratic Political Strategist, and friend of the show, Brad Bannon guest hosts for Leslie during this hour.

For the first half hour, Brad is joined by Kimberly Atkins, DC Bureau Chief for the Boston Herald.

They discuss the Republican primary race, and whether Donald Trump's wins in Michigan and Mississippi last night essentially make it inevitable that he will be the GOP's nominee.

During the second half hour, Brad discusses the upcoming primary contests of delegate-rich Florida and Ohio, as well as what a brokered convention might look like for the GOP this summer.

Brad runs Bannon Communications Research, a polling, message development and media firm which helps labor unions, progressive issue groups and Democratic candidates win public affairs and political campaigns.
Recently, Brad acquired a new position as a weekly blogger for EpicTimes.com. Formerly, he wrote for US News and World Report.
He is also a lecturer in Political Science at Salem State University in Salem, Massachusetts.

Brad's Twitter handle is @BradBannon and his website is www.BannonCR.com.

(Image Credit: AP)