Trump Pledges 'Biggest Tax Cut Ever' , If He's Re-Elected .<br />While under supervision at the <br />Walter Reed National Medical Center.<br />President Trump , posted a series of tweets Monday morning.<br />Previously, Trump said he would give tax breaks to U.S. companies that bring operations back from China.<br />cut the top capital gains tax <br />rate to 15%, forgive temporarily <br />deferred payroll taxes and more.<br />Biden, if elected, <br />intends to raise taxes , for corporations and <br />"anybody making over $400,000."