 A new state law in California is said to require credit card networks like Visa and MasterCard to provide special retail codes that can be used by banks to monitor gun store purchases looking for potentially suspicious sales. This is ABC News. Former Trump White House advisor Steve Bannon will have to report to federal prison by Monday as the Supreme Court has turned down an effort by Bannon to delay the start of his sentence for refusing to comply with a congressional subpoena. In its simple one-sentence order, the high court rejects Steve Bannon's appeal.