“I don’t condone violence, but please get you some shooting lessons so you don’t miss next time ooops, that wasn’t me talking,” Ms Marsaw wrote on Saturday.
The incident has attracted global condemnation as U.S. authorities promise to investigate further.
Mr Musk also posted a video of Mr Trump being rushed off the stage after the shooting, alongside his statement of support for the former president.
This comes in the wake of an assassination attempt on Mr Trump’s life during his campaign on Saturday at Butler, Pennsylvania.
The incident triggered panic among the rallygoers.
A petition by Mrs Alli-Macaulay’s constituents called for her recall on grounds of poor constituency representation.
From the first incident in 1963 to the most recent on Saturday, there have been six different gun attacks on presidential candidates and presidents in the U.S.
The incident sparked panic among the rallygoers and left at least one attendee dead.
The protests have resulted in the deaths of over 40 individuals, as police clashed with demonstrators.
Since the debate, Democrats have pressured Mr Biden to consider stepping down in favour of a more viable candidate.
