WASHINGTON - The Supreme Court on Monday rejected a challenge from Connecticut, Maryland, New Jersey and New York to the 2017 tax law that capped federal tax deductions for state and local taxes. The lawsuit had previously been dismissed by lower courts. It argued that the Republican-led tax law, signed by then-President Donald Trump, unfairly singled out states in which Democrats predominate. The law caps a deduction for state and local taxes, known as SALT, at $10,000. Related stories Investors ‘doomscrolling’ on the brink, surveys find Former West Haven finance director testifies on falsified invoices in DiMassa fraud scandal The lawsuit claimed that lawmakers crafted the provision to target Democratic states, interfering with the states' constitutionally granted taxing authority. Legislation to raise the cap has passed the House but not the Senate.