“What law did he break?”
I don’t know. Wonder if there’s a law against impersonating a senator, or impersonating/misrepresenting a person of standing in order to discuss policy with the president?
“After all, it was the White House who placed the call to the comedian.”
The story reads as if the comedian called the White House switchboard and Kushner allowed the call through to President Trump.
According to Fox News:
“He reached several White House operators before being told the president would call him back. According to the comedian, senior White House adviser Jared Kushner returned the call, connecting him to Trump.”
Yes, there is: https://www.law.cornell.edu/uscode/text/18/912