grapple with. sometimes you can't even imagine. that's the job. and she's the one who's proven she can get it done. ...securing a massive reduction in nuclear weapons... ...standing up against the abuse of women... ...protecting social security... ...expanding benefits for the national guard... ...and winning health care for 8 million children... the presidency is the toughest job in the world and she's the one who'll make a real difference for you. i'm hillary clinton and i approved this message.

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for us senate? because she's a "champion for working families." katie mcginty will take on the republicans and protect social security and medicare. and mcginty will work for equal pay for women - because families depend on it. for the april 26th democratic primary, president obama supports katie mcginty. katie: i'm katie mcginty and i approve this message, because it's your turn to get ahead.

die on national tv. they don't know what they took from us. people are dying. we need a president that's going to talk about it. i believe bernie sanders is a protestor. he's not scared to go up against the criminal justice system. he's not scared. that's why i'm for bernie. i'm bernie sanders and i approve this message.

judgment on day one to be both president and commander in chief. >> do we really feel confident about a candidate saying that she's going to bring change in america when she is so dependent by big money interests? i don't think so. >> reporter: wall street and her paid speeches, a growing feud. >> i stood up against the behaviors of the bank when i was a senator. i called them out on their mortgage behavior. >> secretary clinton called them out. oh, my goodness. they must have been really crushed by it. was that before or after you received huge sums of money by giving speaking engagements? >> reporter: they shouted each other down over the minimum wage. >> wait a minute. >> it's not accurate. >> wait a minute. i have stood on the debate

harrisburg politicians like steve santarsiero, who will say or do anything to advance his career? he claims he wrote pennsylvania's gun safety law. but the truth is he didn't. there is no law requiring universal background checks for all gun purchases. his campaign even bragged that he passed 54 bills. in fact, 7 years in harrisburg, steve santarsiero has never passed a single bill into law. i'm shaughnessy naughton. i approve this message because i am not a career politician.

millions from big banks and then tell them what to do. my plan -- break up the big banks, close the tax loopholes, and make them pay their fair share. then we can expand health care to all, and provide universal college education. will they like me? no. will they begin to play by the rules if i'm president? you better believe it. i'm bernie sanders and i approve this message.