Transcript for Sen. Bob Corker says the president lies on Twitter, treats the job like a reality show
Now, to president trump tonight. He finds himself in a war of words with Republican senator Bob corker. The president targeted corker with tweets this weekend, three in a row. Tonight, the senator continuing to fire back. Saying president trump is so reckless, that the nation could be on the path to World War III. Here's ABC's senior white house correspondent Cecilia Vega tonight. Reporter: As president trump golfed today with Republican senator Lindsay graham, he remained uncharacteristically quiet about his very heated, very public feud with another senior member of his own party. Tennessee senator Bob corker unloading, telling "The New York Times," president trump is so reckless the nation could be "On the path to World War III." Corker saying, "He would have to concern anyone who cares about our nation." And he says, quote, "I know for a fact that every single Dale at the white house, it's a situation of trying to contain him." The attack came after a weekend war of words on Twitter. The president claimed corker "Begged" him for an endorsement and "didn't have the guts to run." Corker, who is not seeking re-election, fired right back, saying, "The white house has become an adult day care center." A powerful voice in the senate, crucial for advancing the president's agenda on tax reform and Iran. Corker was even considered as a possible secretary of state or V.P. Pick. But how far they've fallen. A great friend of mine, somebody respected by everybody, senator Bob corker. Reporter: Now corker says the president lies on Twitter and treats the job like a rheeality show. And he says most Republicans in the senate share his concerns. And Cecilia Vega joining us live tonight from the white house. Cecilia, stunning war of words playing out between the president and senator corker. But what are you hearing from his fellow Republican senators tonight? Reporter: Well, David, the senate is on recess, but we did reach out to every member of Republican leadership, and many other key voices in the senate. No one will touch this, which means at least for now, many people, no one, is disputing corker's claim that many Republicans agree with his concerns about this president, David. Cecilia Vega live at the white house, thank you.
This transcript has been automatically generated and may not be 100% accurate.