The 14th Amendment granted citizenship and equal rights to African Americans, but an obscure section of the amendment may be used to challenge former President Donald Trump if he decides to run for another term in the White House in 2024. Section 3 of the 14th Amendment states that “No person shall be a Senator or Representative in Congress, or elector of President and Vice-President, or hold any office … who, having previously taken an oath… shall have engaged in insurrection or rebellion against the same, or given aid or comfort to the enemies thereof.” The passage is currently being used by…