WaPo's Ashley Parker, Robert Costa, and Eugene Robinson, Republican strategist Rick Wilson, and "Saturday Night Politics" host Donny Deutsch with a look at how Trump's 2016 campaign gives us an idea of what the 2020 presidential race will look like. 

MSNBC correspondent Garrett Haake, Center for American Progress Action Fund's Juanita Tolliver, PBS's Alicia Menendez, and "Saturday Night Politics" host Donny Deutsch on the president's plan to live-tweet the Democratic debates on Wednesday and Thursday night. 

Retired Four Star General Barry McCaffrey, WaPo's Robert Costa, Republican strategist Rick Wilson, "Saturday Night Politics" host Donny Deutsch, and WaPo columnist Eugene Robinson on the divergence between the president and his aides as tensions escalate between the U.S. and Iran. 

MSNBC correspondent Garrett Haake, Center for American Progress Action Fund's Juanita Tolliver, PBS's Alicia Menendez, and "Saturday Night Politics" host Donny Deutsch on Biden looking ahead to a general election with optimism, as new polls show Trump underwater in states he won handily in 2016.