gloria rivera reports from washington. >> i have to do it myself. i know it is not --. >>reporter: donald trump ducking on stage. the secret service rushing in. a scuffle in the crowd behind the candidate creating a security scare during his morning rally in ohio. >> thank you for the warning. much easier if the cops do it. >>reporter: the campaign noticeably jumpy one day after protests turned violent in chicago. the candidate cancelled his appearance, trump is no straraer to protests and interruptions, often heckling back at demonstrators. >> i would like to punch him in the face. we're not allowed to punch back anymore. knock the crap out of him, would you? seriously. >> when you have a campaign that affirmively encourages violence. you create an environment that only encourages this sort of nasty discipline. >> and now, his roichls appear to be -- rivals appear to be waivering to back trump. >> i don't know. getting harder every day. >> would you still support him if he is the no, ma'am snee. >> it makes it extremely -- nominee. >> it makes it extremely difficult. >

gloria rivera has the latest from washington, dc. >> get them out of here, please. get them out of here. get them out. get them out. get them out of here. get them out of here. >> reporter: calmer crowds but plenty of protests against donald trump. >> right in front of the cameras. see that? >> reporter: the g.o.p. fronter in continuing to take heat after recent violence during rallies. >> not beneficial when you have a candidate like donald trump who is telling his protesters, punch that guy in the face. >> reporter: this video went viral, showing a trump supporter punching a protester as he was escorted out. now the billionaire considering paying the man's legal fees. >> they man got cared away. 78 years old. i i don't condone violence. >> trump keeps taunting demonstrators, accusing. the of being from the bernie sanders campaign. >> send them back to bernie. >> sanders fighting back. >> he's lying again. first of all, calls me a communist. obviously that's a lie. then he says our campaign organizing disruption his rally. that's a lie. >> hillary clinton in the ba

abc news reporter gloria rivera has important advice for parents. >> a 20-year-old, a nanny previouslyeading not guilty to felony child abuse on friday. >> it is characterized as criminal, and i disagree. >> in an affidavit police say gonzalez allegedly attempting to calm a 13-month-old boy, putting her hands closer to her face. when the sounds went from clear and audible to a muffled cry, and the child began to squirm and kick. it was discovered on home surveillance video. the parents say they hired gonzalez after seeing her listing on care.com. care.com said we are deeply troubled by this incident, adding the safety of our community is of paramount importance us to. it isn't the first time people have shown poor light on care.com. >> people can be dishonest and provide information that's not linking to them. >> last month sarah was steps today 23 years in brings sop to the killing of a three-month-old girl. in january susan needed not guilty after allegedly being too intoxicated to care for a child. and in 2014, the nanny caught on camera abusing twins, convicted of child cruelty >>

gloria rivera has more on the nanny charged with child abuse. >> reporter: 20-year-old mariah gonzalez pleading not guilty to felony child abuse in a california courtroom on friday. >> the conduct is characterized as criminal, and i disagree. >> reporter: in an affidavit, police agonzalez allegedly attempting to calm a 13-month- old boy was seen putting her hands closer to his face. when the sounds went from clear and audible to a muffled cry. and the child began to squirm and kick. the alleged incident discovered on home surveillance video. the parents saying they hired gonzalez after seeing her listing on care.com. a spokesperson for care.com telling abc news, we are deeply troubled by this incident. adding the safety of our community is of paramount importance to us. this isn't the first time a >> people can be dishonest on their profiles. they can provide information that is not linking to them. >> reporter: last month, sarah gun sentenced to 23 years in month-old girl. in january, susan conway lolly pleaded not guilty after being child. and in 2014, dana cash, the nanny caught on