Donald Trump Refuses to Endorse Paul Ryan, John McCain

The Republican presidential nominee said he is "just not quite there yet" in endorsing the two Republican leaders in their primary elections.
2:48 | 08/03/16

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Transcript for Donald Trump Refuses to Endorse Paul Ryan, John McCain
And that new trouble for Donald Trump. The republican nominee going head-to-head with top members of his own party as president Obama calls him, quote, unfit for the presidency. ABC's Cecilia Vega has the latest. Good morning, Cecilia. Reporter: Good morning. What happened in the last 4 hours for Donald Trump reads like a checklist of political don'ts. 'Managed to anger party leaders, anger vet, even moms with baby, yes, babies. Donald Trump may be the republican nominee but this morning he is at war with his own party, not just refusing to endorse two of the gop's highest ranking members in their state primaries, house speaker Paul Ryan and senator John McCain. Never been a big fan of John McCain and I just hate the way our veterans have been treated by John and other people. Reporter: Trump also coming under fire for this move at a Virginia rally. A man came up to me and he handed me his purple heart. Reporter: Trump who never served in the military then said -- I always wanted to get the purple heart. This was much easier. Reporter: He even raised eyebrows for booting out a crying baby. At first saying -- Don't worry about that baby. I love babies. I love babies. I hear that baby crying, I like it. Reporter: But then -- Actually I was only kidding. You can get the baby out of here. That's all right. Don't worry. I think she really believed me that I love having a baby crying while I'm speaking. That's okay. Reporter: This morning two high-profile republican supporters announcing they will not vote for trump. Hewlett-Packard CEO meg Whitman and New York congressman Richard Hanna both saying they will break ranks and support Hillary Clinton. Overnight Ivanka Trump forced to defend her father's comments on sexual harassment said if his own daughter faced harassment she would find another job. I think sexual harassment is inexcusable in any setting. Reporter: President Obama also piling on with his strongest attack yet. He's woefully unprepared to do this job. Reporter: Suggesting gop leaders should withdraw their endorsement of trump. There has to be a point at which you say, this is not somebody I can support for president of the United States. There has to come a point at which you say enough. Reporter: Well, so far none of the gop leadership is defecting as a result of that call from president Obama but we do now know overnight RNC chairman reince priebus called Donald Trump to express frustration with how his campaign is handling its messaging and now the Clinton campaign is pouncing making a concentrated effort to target republicans and pick up some of

This transcript has been automatically generated and may not be 100% accurate.

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