The president has been briefed by Mark Penn, a pollster who has worked for Bill and Hillary Clinton, and Andrew Stein, a former New York City Council president and decades-long friend of Mr. Trump, on a range of polling that showed Mr. Cuomo could still be competitive as an independent candidate. Both men have pushed Mr. Cuomo as the best candidate despite his loss in the Democratic primary, including in a recent Wall Street Journal op-ed. One of Mr. Penn’s firms did extensive work for a pro-Cuomo super PAC in the primary.
And in a previously undisclosed call in recent weeks, Mr. Trump spoke about the race directly with Mr. Cuomo, an old associate and foil, according to three people briefed on the call, who were not authorized to discuss it.