evidence: Still, Harris was at the top of the vice presidential shortlist when Biden was pondering his running mate, after his pledge in early 2020 that he would choose a Black woman as his No. 2. He was fond of Harris, who had forged a close friendship with his now-deceased son Beau, who had been Delaware’s attorney general when she was in that job for California. [...] Throughout her vice presidency, Harris has been careful to remain loyal to Biden while emphasizing that she would be ready to step in if needed. That dramatic transition began in late June after the first debate between Biden and Trump, where the president’s stumbles were so cataclysmic that he could never reverse the loss of confidence from other Democrats. [...] Yet Democrats are anticipating that Harris’ political honeymoon will wear off, and she is inevitably going to come under tougher scrutiny for Biden administration positions, the state of the economy and volatile situations abroad, particularly in the Middle East. Harris has also yet to answer extended questions from journalists nor sit down for a formal interview since she began her run.