Biden says he'll stay in race after rough debate night; In Jan. 6 case, high court narrows scope of who can be charged with obstruction; families of Uvalde school victims speak out about arrest of former police chief; and more on tonight's broadcast.

In major win for Trump, high court derails special prosecutor's case; Trump calls Supreme Court decision a 'big win' for the constitution and democracy; Pressure remains on Biden campaign after debate performance; and more on tonight's broadcast.