A group of international observers invited by the Trump administration has released a preliminary report, criticizing U.S. President Donald Trump for his baseless allegations of systematic fraud.

The said 28-member international observers from the Organization of American States followed events across the U.S.

This includes swing states like such as Georgia and Michigan.

"While the OAS Mission has not directly observed any serious irregularities that call into question the results so far, it supports the right of all contesting parties in an election, to seek redress before the competent legal authorities when they believe they have been wronged," the report said.

It added that it critical, however, that candidates act responsibly by presenting and arguing legitimate claims before the courts, as reported by The Wall Street Journal.

It further said that one should not release any unsubstantiated or harmful allegations in the public eye.

The OAS report had similar findings by an election observation team from the Organization for Security and Cooperation in Europe.

Leader of the OSCE observer mission, Michael Georg Link, said that baseless claims of systematic deficiencies, notably by the incumbent president on election night, harm the public's trust in the democratic process.

Related story: Barr Allows Justice Dept. to Investigate Voter Fraud Claims; DOJ's Election Crimes Chief Quits

The 20-OAS page report lauded state and local officials for their efforts to handle the voting during the COVID-19 pandemic.

The report has numerous recommendations, but found no evidence of fraud that Trump has insisted.

Vote Fraud Claims

Trump has continued to claim that there was a vote fraud that took place in this year's election.

Republicans' reaction varies to Trump's claims.

Some agreed, while some release carefully made statements offering ideas of fair elections, without any endorsement of Trump's claims.

Senator Mitch McConnell promoted the idea that every legal vote should be counted.

McConnell said that all sides must get to observe the process. He cited court's role to apply laws and resolve disputes.

Meanwhile, Republican senator, Patrick J. Toomey, said that Trump's claims were very disturbing for him as he made very serious allegations with evidence backing it, as reported by The New York Times.

Toomey added that he is not aware of any significant fraud or wrongdoing.

Trump Campaign Lawsuit Against Pennsylvania

Recently, Trump campaign team filed a lawsuit against the state of Pennsylvania to stop the certification of the election results in the state.

Trump campaign's filed complaint said that Democratic voters were treated favorably than Republican voters, according to an Associated Press News report.

The 85-page lawsuit was filed without any evidence of vote fraud, other than a list of allegations.

This includes an election worker in Chester County allegedly changing "over-voted" ballots by altering votes that had been marked to Trump to another candidate.

Related story: Trump Campaign Sues Pennsylvania to Halt State Officials From Certifying Biden's Win

Pennsylvania's attorney general, Josh Shapiro, said that the Trump campaign's lawsuit is meritless.

Pennsylvania's governor Tom Wolf, said in a statement that ballot watcher from all parties have observers throughout the process.

Wolf added that any implication otherwise is a lie, as reported by AP News.