The US Supreme Court on Friday agreed to hear Donald Trump’s appeal of a judicial decision barring the former president from Colorado’s Republican primary ballot, taking up a politically explosive case with major implications for the 2024 presidential election. At issue is the Colorado Supreme Court’s 19 December ruling disqualifying Trump from the state’s primary ballot based on language in the US Constitution’s 14th Amendment for engaging in insurrection, involving the 6 January 2021 attack by his supporters on the US Capitol. The justices took up the case with unusual speed. Trump, the fron…