WASHINGTON - US President Donald Trump plans to meet with Republican and Democratic lawmakers on Wednesday to discuss gun legislation, the White House said, after a mass shooting in Florida that killed 17 students and staff. 'The president is planning a meeting for Wednesday with bipartisan members of Congress ... to discuss different pieces of legislation and what they can do moving forward,' White House press secretary Sarah Sanders said at a news briefing. Trump would support legislation to ban bump stock devices, she said, if an administrative fix does not work.