From the gov web site - for whatever reason AU will not let me post it as a reply to a comment, so I have had to copy the text from it instead.

"Constitutional requirements for presidential candidates
Candidates for president of the United States must meet basic requirements. Learn about the criteria to run for president.

The U.S. Constitution states that the president must:

Be a natural-born citizen of the United States
Be at least 35 years old
Have been a resident of the United States for 14 years
Anyone who meets these requirements can declare their candidacy for president. Once a candidate raises or spends more than $5,000 for their campaign, they must register with the Federal Election Commission. That includes naming a principal campaign committee to raise and spend campaign funds."

"The fact that Senator Kamala Harris has just been named the vice presidential running mate for presumptive Democratic presidential nominee Joe Biden has some questioning her eligibility for the position. The 12th Amendment provides that "no person constitutionally ineligible to the office of President shall be eligible to that of Vice-President of the United States." And Article II of the Constitution specifies that "[n]o person except a natural born citizen...shall be eligible to the office of President." Her father was (and is) a Jamaican national, her mother was from India, and neither was a naturalized U.S. citizen at the time of Harris' birth in 1964. That, according to these commentators, makes her not a "natural born citizen"—and therefore ineligible for the office of the president and, hence, ineligible for the office of the vice president."