Acting White House Chief of Staff Mick Mulvaney says President Trump is ready to shut down the government again if a deal on border security is not reached.<br />Mick Mulvaney made the remarks on CBS' 'Face the Nation' and comes less than two days after Trump agreed to reopen the government for three weeks to allow further negotiations. <br />It ended a 35-day government shutdown - the longest in American history - that saw 800,000 furloughed federal workers miss two paychecks. <br />Mulvaney said talks may be different this time as Democrats agree with Trump's plan to better secure the border. <br />