Israeli Prime Minister Benjamin Netanyahu declined on Tuesday an invitation to meet with U.S. Senate Democrats during his trip to Washington next week.

“Though I greatly appreciate your kind invitation to meet with Democratic Senators, I believe that doing so at this time could compound the misperception of partisanship regarding my upcoming visit,” Netanyahu wrote in a letter to Senators Richard Durbin and Dianne Feinstein obtained by Reuters.

Durbin and Feinstein had invited Netanyahu to a closed-door meeting with Democratic senators in a letter on Monday.