So what are they waiting on….

A top aide to Hillary Clinton may sit down with senators after all to discuss the secret, ‘home-brew’ email server that has engulfed her presidential candidacy.

Senators on Capitol Hill are mulling whether to offer immunity to Bryan Pagliano, who had vowed last week to invoke his right against self-incrimination guaranteed under the Fifth Amendment instead of answer questions about the server he set up in Clinton’s New York home.

The server, which Clinton used as secretary of state, was known to some in the Obama administration but was not known publicly until earlier this year, prompting her polling standings to drop amid questions about her trustworthiness.