Will Taylor Swift back Kamala Harris and ignore Ivanka Trump’s birthday cake appeal?

Now that Joe Biden has dropped out of the presidential race and endorsed Kamala Harris to replace him at the top of the Democratic ticket, an intriguing new question is swirling around efforts to defeat Donald Trump in November.

The question is whether Taylor Swift will endorse Harris. If Swift does, it could mean that the most famous entertainer on the planet right now could lend her considerable cultural power to back the vice president in her quest to make history by becoming the nation’s first woman...