NEWARK, N.J. (AP) — A jury is hearing for a third day from a key government witness in the George Washington Bridge lane-closing trial. David Wildstein pleaded guilty last year and is testifying against two former allies of Republican Gov. Chris Christie who are charged with creating traffic jams in 2013 to retaliate against a Democratic mayor for not endorsing Christie. Wildstein described Tuesday how the two defendants "froze out" another Democratic mayor who declined to endorse the governor.