Charges against Menendez this week?

The federal government could file criminal charges against Sen. Robert Menendez (D-N.J.) as soon as this week, according to The Wall Street Journal.

{mosads}Investigators are probing the relationship between Menendez and his donor Salomon Melgen, an eye doctor whose offices have already been raided by federal agents. The Journal reports that the FBI is looking into whether Melgen gave Menendez gifts and whether the New Jersey Democrat helped lobby the Department of Homeland Security on Melgen’s behalf.

A person familiar with the investigation also told the paper that Menendez will be charged in New Jersey.

“I am not going anywhere,” Menendez said at a press conference earlier this month when news outlets first started reporting the investigation.

“I have always conducted myself appropriately and in accordance with the law.”

Menendez previously paid Melgen $58,000 for plane trips the pair took in 2010 to correct what his office called an “oversight.”

The Justice Department and the Senate Ethics Committee are both tight-lipped about the existence of any investigation. But Menendez set up a legal defense fund in 2014 and wrote in his filing that he needed to raise money to defend himself from investigations from both.

The longtime senator is a prominent voice on foreign policy within the Senate Democratic Caucus, having previously served as Foreign Relations Committee chairman.

Republican Sens. Lindsey Graham (S.C.) and Ted Cruz (Texas) have both publicly questioned the timing of the investigation’s leak. Menendez has recently clashed with the Obama administration over ending the embargo in Cuba as well as on the nuclear negotiations with Iran.