MSNBC said in a statement Thursday morning that in light of the allegations, Halperin would not be returning as a contributor for the time being.
"We find the story and the allegations very troubling. Mark Halperin is leaving his role as a contributor until the questions around his past conduct are fully understood," the statement said.
Halperin didn't immediately return calls seeking comment. In a statement to CNN, ABC News said: "Mark left ABC News over a decade ago, and no complaints were filed during his tenure."
Halperin, who worked for NBC News, MSNBC, Bloomberg Politics and Time magazine after he left ABC News, rejoined NBC News and MSNBC as a contributor and senior political analyst in March. He is a regular guest on MSNBC's "Morning Joe" and on NBC News broadcasts.
Halperin didn't have a problem with Trump's behavior: