Jan 19 (Reuters) - The elder son of former Republican vice presidential nominee Sarah Palin has been arrested on suspicion of assaulting a woman and carrying a gun while intoxicated, police in the family's Alaska hometown said on Tuesday.

The arrest came just hours before Palin, the politician-turned-reality TV star, endorsed Donald Trump , the reality television star-turned-politician, in his bid for the 2016 Republican presidential nomination.