There was an article written today in iGamingBusiness regarding New Jersey Governor Chris Christie had signed a bill urging President Trump oppose legislation that would prevent online gambling.
The article can be read here: http://www.igamingbusiness.com/news/...-online-gaming
Although online gambling could be could for New Jersey and other states Trump has his own interests in his brick and mortar casinos. However, not only is his interest in his own properties it has been reported that Trump received a lot of money during his campaign from Sheldon Adelson who continues to invest money to stop online gambling at the federal level.
Based on Trump's relationship with cash supporters it is questionable if Chris Christie will be successful.