In his first post-election news conference, President-elect Donald Trump vowed to "straighten out" the "corrupt" US press. And if Trump's White House does hold daily news conferences, he could get rid of seats reserved for mainstream outlets. On Monday, the billionaire sued pollster Ann Selzer, the Des Moines Register newspaper and its parent company Gannett over a pre-election poll that -- wrongly, come Election Day -- saw him behind in the state.