possibility of donald j. trump being commander in chief. >> when i heard donald trump insult my prisoners of war in vietnam by calling us losers, that was the most infuriating comment i think i've heard from a politician in my entire life. trump would not have survived the p.o.w. experience. he probably would have been the first one to fold. >> i'm lieutenant colonel michael walsh. i've served multiple tours in afghanistan as a special forces commander. donald trump hasn't served this country a day in his life. essentially dodged the draft in vietnam through multiple

you were clear on this, you said an earned pathway was amnesty, yet you changed your mind here. why? >> do you support a path for citizenship for immigrants in the united states here illegally? >> i do. >> marco rubio once said -- >> if you don't want to vote on things, don't run for the senator. >> really? rubio talks up his national security experience. do you know he skipped 18 defense votes? including one to arm the kurds to fight isis. marco rubio, absent on national

>> i do. >> marco rubio once said -- >> if you don't want to vote on things, don't run for the senator. >> really? rubio talks up his national security experience. do you know he skipped 18 defense votes? including one to arm the kurds to fight isis. marco rubio, absent on national defense. >> john, florida is a state where negative ads do have a history of working, maybe more than in some of the other contests. i wonder what you think of the means that cruz allies are hitting rubio in his home state?

key vote after making a quick $200,000 from selling his house to the mother of the bill's lobbyist. he used the republican party's credit card to pave his driveway, and to live it up in las vegas. and when he got caught, he said he had used the wrong credit card. but he had used the same republican party card for six flights between miami and tallahassee. then billed the state for the same airline tickets and pocketed the cash. until, once again, he got caught. on top of it all, rubio's been a total no-show in the u.s. senate. with the worst voting record of all. marco rubio, another corrupt all-talk, no-action politician. >> i'm donald trump, and i approve this message. >> it's clear the rubio folks are very happy to see trump being hit with a lot of negative ads. rubio is being hit by negative

>> i'm lieutenant colonel michael walsh. i've served multiple tours in afghanistan as a special forces commander. donald trump hasn't served this country a day in his life. essentially dodged the draft in vietnam through multiple deferments. he's been fed through a silver spoon. west to boarding school. says it was so tough, he felt like he was in the military. all donald trump has served is himself. >> this ad goes to the commander in chief theme, but it is also a part of a larger thing saying to the republican voters, trump is

>> for years, marco rubio has been making it snow for big sugar in washington. so-called conservative marco rubio has been taking your hard-earned tax dollars and giving them to pay his billionaire buddies that run big sugar with big su si dis, run by the same billionaires in marco rubio's political career? hillary clinton, marco rubio, the king of corporate wealth fair. >> that same super pac is st