Special Counsel Jack Smith’s office has repeatedly grilled witnesses about Rudy Giuliani’s drinking on and after election day, investigating whether Donald Trump was knowingly relying on an inebriated attorney while trying to overturn a presidential election. In their questioning of multiple witnesses, Smith’s team of federal investigators have asked questions about how seemingly intoxicated Giuliani was during the weeks he was giving Trump advice on how to cling to power, according to a source who’s been in the room with Smith’s team, one witness’s attorney, and a third person familiar with the matter. The special counsel’s team has also asked...