A group of White House interns joined the growing list of administration officials applying internal pressure to President Joe Biden to call for a permanent cease-fire between Israel and Hamas, sending him a letter late Tuesday that accuses him of having "ignored" the "pleas of the American people." The letter, first shared with NBC News and addressed to Biden and Vice President Kamala Harris, is supported by more than 40 interns who work in the White House and other executive branch offices, according to the text.