Updated

Sen. Bob Menendez, D-N.J., will resign from the Senate after significant pressure from Democrats to do so following a guilty verdict in his federal corruption case.

A resignation letter from the senator was entered into the congressional record on Tuesday by Sen. Peter Welch, D-Vt., who was acting as chair of the Senate. 

Menendez informed Gov. Phil Murphy, D-N.J., that he would be resigning after Aug. 20 in the correspondence, which was obtained by Fox News. 

The New Jersey Democrat was found guilty on all 16 counts last week, which included charges of extortion, bribery, conspiracy, obstruction of justice, wire fraud, and acting as a foreign agent. The trial lasted nine weeks and the jury deliberated for three days before reaching a verdict. 

Senate Majority Leader Chuck Schumer, D-N.Y., immediately called for Menendez’s resignation, despite initially holding off from doing so after the charges were announced. 

"In light of this guilty verdict, Senator Menendez must now do what is right for his constituents, the Senate, and our country, and resign," he said in a statement.

JD VANCE BY THE NUMBERS: FIRST SPEECH SIGNALS HEAVY CAMPAIGN PRESENCE IN BATTLEGROUND RUST BELT

Bob Menendez

Menendez was found guilty by a jury in New York.  (Getty Images)

Senate Majority Whip Dick Durbin, D-Ill., echoed Schumer’s call in his own statement, along with nearly every other Senate Democrat.

Menendez has expressed his intention to appeal the conviction. 

CHUCK SCHUMER PUSHED TO DELAY DNC AS CONCERNS PERSIST OVER BIDEN'S CANDIDACY

Menendez and his wife enter court in New York City

Menendez was accused of similar activities in 2015.  (AP Photo/Jeenah Moon, File)

The New Jersey senator has served in the chamber since 2006 and was re-elected twice. Before being a senator, Menendez served for several terms in the House of Representatives. 

In 2015, Menendez was indicted on charges of conspiracy, bribery, and honest services fraud in relation to gifts from a wealthy ophthalmologist who the government alleged he was doing political favors for in return. However, a mistrial was declared in 2017 when jurors could not agree on a verdict. By 2018, prosecutors said they would not seek to retry the senator. 

ADAM SCHIFF CALLS ON BIDEN TO EXIT PRESIDENTIAL RACE AS DEM CONFIDENCE DWINDLES

Evidence photos included in the indictment charging Senator Robert Menendez and Nadine Menendez with bribery.

An evidence photo shows gold bars that were gifted by Fred Daibes and found in Democratic New Jersey Senator Robert Menendez and Nadine Menendez’s home.  (United States District Court )

If Menendez did not take the recent advice of Democrats to resign following the verdict, some had threatened the route of expulsion from the Senate. But that would require a two-thirds majority vote in the chamber, which can be difficult to achieve among lawmakers. 

COULD BOB MENENDEZ RUN FOR RE-ELECTION AFTER BEING FOUND GUILTY OF CORRUPTION?

Capitol Building of US

U.S. Capitol Building  (AP Photo/J. Scott Applewhite)

Expulsion is also a rarely used mechanism and no lawmaker has been cast out of the chamber since the 1800s. There was an effort to expel former Sen. Bob Packwood, R-Ore., in 1995, but he ultimately resigned to avoid that fate. 

CLICK HERE TO GET THE FOX NEWS APP

Only 15 senators have ever been expelled. Fourteen of those expulsions were due to support for the Confederacy during the Civil War.  

In other cases, efforts to expel senators, in many instances for corruption, have ended due to the lawmaker leaving office. On some occasions, expulsion proceedings were also dropped. 

Fox News' Chad Pergram contributed to this report.