(COMBO) This combination of pictures created on September 10, 2024 shows US Vice President and Democratic presidential candidate Kamala Harris smiles during a presidential debate with former US President and Republican presidential candidate Donald Trump at the National Constitution Center in Philadelphia, Pennsylvania, on September 10, 2024. American singer and songwriter Taylor Swift performs on stage as part of her Eras Tour in Lisbon on May 24, 2024.. Taylor Swift, a self-declared "childless cat lady," has endorsed Kamala Harris for president of the United States. The global megastar broke her silence on the current state of US politics September 10, 2024, voicing support for Harris over Donald Trump for the White House, and calling the Democratic candidate a "steady-handed, gifted leader." (Photo by SAUL LOEB and ANDRE DIAS NOBRE / AFP) (Photo by SAUL LOEBANDRE DIAS NOBRE/AFP via Getty Images)