Republican presidential front-runner Donald Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE on Saturday claimed that Marco Rubio Marco Antonio RubioFlorida senators pushing to keep Daylight Savings Time during pandemic Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Intelligence chief says Congress will get some in-person election security briefings MORE is trying to rig voting in the Florida primary through an early-voting scheme.

Word is-early voting in FL is very dishonest. Little Marco, his State Chairman, & their minions are working overtime-trying to rig the vote. — Donald J. Trump (@realDonaldTrump) March 12, 2016

We are asking law enforcement to check for dishonest early voting in Florida- on behalf of little Marco Rubio.

No way to run a country! — Donald J. Trump (@realDonaldTrump) March 12, 2016

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Rubio's campaign has been focused on mobilizing voters in his home state to participate in the primary during the early-voting period.

The Florida primary has an eight-day early voting period leading up to the March 15 election.

It is unclear what part of Rubio's efforts Trump believes to be dishonest.