WASHINGTON, Oct 7 (Reuters) - Elon Musk plans more

campaigning for Republican presidential candidate Donald Trump

in Pennsylvania, a source familiar with the effort said on

Monday, after the billionaire made a high-profile appearance

with the former president there.

Musk leaped into the air and threw his arms up when he

stepped on stage in support of Trump on Saturday at a campaign

rally in Butler, Pennsylvania.

It was the first time that Musk, CEO of Tesla and

owner of social media platform X, appeared at a Trump campaign

event since he endorsed the former president after the July 13

attempt on his life at the same venue.

The source, speaking on condition of anonymity, said Musk's

appearances would be connected to his America PAC political

action committee.

The Trump campaign did not respond to a request for comment.

Pennsylvania is considered a crucial state for both Trump

and his Democratic opponent, Vice President Kamala Harris, in

the race for the Nov. 5 election. Trump will appear at campaign

rallies in the state on Wednesday, in Scranton and Reading.

(Reporting by Steve Holland; Editing by Lincoln Feast.)