Sen. Bob Menendez (D-NJ) on Thursday was hit with more charges on top of the indictment that was issued against him last month. Now, the Justice Department is charging the lawmaker and his wife for conspiracy to act as a foreign agent for the Egyptian government without registering as such.

Sen. John Fetterman (D-PA) is calling for Menendez to be expelled from the upper chamber over the charges.

Sen. John Fetterman (D-PA) on Thursday called on the Senate to expel Sen. Bob Menendez (D-NJ) after the latter was hit with additional federal charges that accuse him of being a foreign agent.

The Pennsylvania Democrat, the first senator to call for Menendez’s resignation after he and his wife were indicted on federal bribery charges, made the call in a statement after the superseding indictment was handed down on Thursday morning. The New Jersey senator is now accused of violating the Foreign Agents Registration Act through his work on behalf of the government of Egypt without registering as a foreign agent.

“Senator Menendez should not be a U.S. Senator. He should have been gone long ago,” Fetterman’s statement read. “It is time for every one of my colleagues in the Senate to join me in expelling Senator Menendez. We cannot have an alleged foreign agent in the United States Senate. This is not a close call.”

In a written statement, Menendez denied the allegations, claiming they were part of a “smear campaign” against him. “I have been, throughout my life, loyal to only one country – the United States of America,” he said while explaining that he would be fighting the charges.

The senator and his wife are already facing allegations that they accepted bribes from three businessmen, one of whom works with the Egyptian government. In fact, he is accused of using his influence to benefit Egypt in exchange for bribes, including cash, gold bars, a Mercedes, and other gifts. Republicans and Democrats in Congress have called on Menendez to resign, but he has refused.

Fetterman has been leading the charge to get Menendez out of office. He was the first to call for the New Jersey senator’s resignation. Now, he is urging his colleagues to support the expulsion.

Last month, Sen. Fetterman indicated he would return all of Menendez’s donations to his campaign in envelopes stuffed with cash, a joking reference to the fact that law enforcement officers found alleged bribe money in envelopes at Menendez’s home.

Currently, Fetterman is mostly alone in his quest to have Menendez expelled from the upper chamber. While more than half of the Senate have called on him to step down, no other members have indicated that they support forcibly removing him.

In fact, about 20 Senate Democrats, including Sen. Chuck Schumer (D-NY), believe Menendez deserves the opportunity to fight the charges. At this point, it does not appear likely that an effort to expel the New Jersey lawmaker would gain any traction. But, if the prosecutors prove their case against him, then expulsion might not even be necessary.