Former President Donald J. Trump is sharpening his attacks on the independent presidential candidate Robert F. Kennedy Jr., as new polls show an overlap between their core supporters. In a series of posts on his Truth Social media platform on Friday night, Mr. Trump, the presumptive Republican nominee, took aim at both Mr. Kennedy and his running mate, Nicole Shanahan, a wealthy Silicon Valley lawyer and investor. “RFK Jr. is a Democrat ‘Plant,’ a Radical Left Liberal who’s been put in place in order to help Crooked Joe Biden, the Worst President in the History of the United States, get Re-Elected,” Mr. Trump wrote. Mr. Trump, who had privately discussed the idea of Mr. Kennedy as a running mate, echoed what Democrats have been saying for months about Mr. Kennedy’s candidacy — that it could swing the election. He also appeared to be adopting a new derisive nickname for him.

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Persons: Donald J, Robert F, Kennedy Jr, Trump, Kennedy, Nicole Shanahan, “, ‘ Plant, ’, Radical Left Liberal who’s, Crooked Joe Biden, ” Mr, Kennedy’s Organizations: Trump, Social, Republican, “ RFK, Radical Left Liberal Locations: United States