Today, October 30, a Denver courtroom will hear opening arguments in a legal challenge to former President Donald Trump’s constitutional eligibility to seek that office again, in a landmark case widely expected to ultimately reach the U.S. Supreme Court. In a lawsuit filed last month on behalf of six Colorado voters, the watchdog group Citizens for Responsibility and Ethics in Washington alleged that Trump’s efforts to overturn the results of the 2020 election disqualify him from Colorado’s presidential ballot under the 14th Amendment to the Constitution…