WASHINGTON (AP) — An embattled FBI agent whose anti-Trump text messages exposed the Justice Department to claims of institutional bias vigorously defended himself at an extraordinary congressional hearing that devolved into shouting matches, finger-pointing and veiled references to personal transgressions.

Peter Strzok on Thursday testified publicly for the first time since being removed from special counsel Robert Mueller's team following the discovery of texts last year that were traded with an FBI lawyer in the run-up to the 2016 presidential election.

In a chaotic hearing that spanned 10 h...