Former President Donald Trump said Tuesday that he has gotten a letter informing him that he is a target of the U.S. Department of Justice's investigation into efforts to undo the results of the 2020 presidential election.

This comes as Trump is seeking the Republican Party presidential nomination amid a slew of mounting legal troubles.

Trump is currently facing state and federal counts in New York and in Florida, as well as a separate election probe in Georgia.

Adam Kaufmann, a veteran lawyer who practices in the areas of white-collar crime, joined Errol Louis on "Inside City Hall" Tuesday night to discuss the letter and more.

"It is basically telling the individual that we are on the verge of making a decision, we view you as someone that we are going to probably charge and we are giving you a last opportunity if you want to come in and talk to us," Kaufmann said when asked about why the government issued the letter.

Kaufmann is also a former assistant district attorney with the Manhattan District Attorney's Office for nearly 20 years.