Can Kamala Harris become the the first female president of USA, why are old controversies raising their heads.

People of Kamala Harris own democratic party are raising questions on the ability of American President Joe Biden. 
It is being estimated that after the voting to be held next month.https://www.aajtak.in/explained/story/could-kamala-harris-beat-donald-trump-amid-weak-performance-of-joe-biden-america-election-mdj-1981704-2024-07-10?utm_source=izooto&utm_medium=push_notifications&utm_campaign=promotion

The presidential elections going to be held in America in November are showing a different tone this time. 
Questions are being raised on the cognitive skills of the contender for the post, Joe Biden. https://24indiannews.com/meeting-between-pm-modi-and-president-putin-russia-consents-to-release-all-indians-hired-by-their-army/

Benediction & Amande firm recently conducted a survey about 59 year old Vice President Harris. It claimed that Harris could enter the presidential race.
CNN's poll also indicates the same, but one thing is different here.
According to this, if Biden contests the elections, he can lose to Trump by a huge margin, while Kamala.