A top Hillary Clinton staffer called Donald Trump’s suggestion for Russia to hack the Democratic presidential nominee “unacceptable” and “unbecoming.”

“Donald Trump is running to be president of the United States. Inviting a foreign power that is an aggressor at times to the United States to commit espionage for whatever reason — let alone influence the outcome of one of our elections — is unacceptable,” Clinton campaign manager Robby Mook said Thursday on “CBS This Morning.”