Amsterdam & Partners will receive a $4M flat fee to push for the removal of US sanctions on Venezuela. The US does not recognize the government of Venezuela.
A&P assumed the work of Foley & Lardner, which resigned the account last month after Florida Senator Rick Scott blasted it for representing the "brutal regime" of Nicolas Maduro.
F&L was in line for a $12.5M flat fee for devising a "narrative and strategy" to help Venezuela remove the sanctions.
The US on March 26 charged Maduro and his associates with narco-terrorism, alleging they have "deployed cocaine as a weapon" to undermine the US, according to attorney general Bill Barr.
The Trump administration is offering a $15K reward for the capture or conviction of Maduro.
In a TV address, Maduro blasted Trump as a "racist cowboy" who "manages international relations like a New York mafia extortion artist you once were as a real estate boss.”
A&P's contract, which runs through December, is with Venezuela's attorney general Reinaldo Munoz Pedroza, who was not named in the US indictment.