Vice President Kamala Harris and former President Donald Trump are engaged in a neck-and-neck battle for the presidency, with the outcome expected to be one of the closest in U.S. history. What Happened: Harris is currently slightly ahead, with a 54% probability of securing the presidency according to The Hill/Decision Desk HQ model. However, the Senate race is leaning towards the Republicans with a 71% chance, and the House race is also closely contested, with Republicans holding a 56% likelihood of maintaining their majority. The FiveThirtyEight model gives Harris a 55% chance of victory, wh…