The Supreme Court has issued further guidance on how immigrants who were misadvised about the immigration consequences of their guilty pleas can establish the required prejudice to vacate those pleas. Specifically, the Court determined that even an immigrant with no defense to a pending charge might decide to take their chances with a jury, on the slim chance they would be acquitted, rather than take a plea bargain that would result in certain deportation.
The full text of Lee v. United States can be found here: