Washington (AFP) – Sporting a red tie, Donald Trump — combative, goading, sometimes angry and insulting. Wearing a blue tie with stripes, Joe Biden — calm, amiable, sometimes stumbling and hesitant. From February 16, 2017 to March 25, 2021: two debut press conferences at the White House by two presidents of the same generation but with radically different styles. After nearly four weeks in power, Donald Trump, a political novice, frustrated by characterizations of the start of his presidency as chaotic, let loose on the media in a torrent of words. After nine weeks in the White House, Joe Bi…