The main purpose of this legislation is to impose a tax on any net capital gains that a person earns while serving as President of the United States. This aims to ensure that any financial gains made during a president's term are taxed at a high rate, specifically 100 percent, to discourage potential conflicts of interest and promote transparency in financial dealings. Key provisions of the law include a requirement that if a president has any qualified net capital gains during their time in office, they will be taxed at a rate of 100 percent.