In a federal civil case, in the context of the US Supreme Court, what is the case law on plea bargaining and the implications of plea negotiations?

more serious, had a smaller chance of causing adverse immigration consequences"). "In order that the[] benefits [of plea bargaining] can be realized, however, criminal defendants require effective counsel during plea negotiations. Anything less . . . might deny a defendant effective representation by counsel at the only stage when legal aid and advice would help him." (Internal quotation marks omitted) (alteration in original) (emphasis added). Missouri v. Frye, 132 S.Ct. 1399, 1407-08 (2012).