The reason is that the White House is banning AP's journalists from the White House, Trump's residence Mar-a-Lago in Florida, and the president's plane Air Force One.
The Trump administration is doing this because AP still calls the bay in the Atlantic the Mexican Gulf – despite the fact that the President of the USA, Donald Trump, has changed the name to the American Gulf.
We will keep them away until they agree that it is called the American Gulf, Trump himself said on Tuesday.
The three mentioned in AP's lawsuit are Trump's chief of staff Susie Wiles, the White House press secretary Karoline Leavitt, and the White House's deputy personnel chief Taylor Budowich.
"The press and the entire US population have the right to choose their own words and not be subjected to reprisals by the government", AP writes and calls the move a constitutional violation that breaks the American Constitution's first amendment, which guarantees freedom of speech.
Earlier in the week, around 40 news organizations signed a letter urging the White House to change its stance towards AP.
