I lost my appeal in federal court. Can I appeal to the U.S. Supreme Court?

If you lost your appeal in federal court, you have 90 days to ask the U.S. Supreme Court to hear your case by filing a petition for writ of certiorari. Keep in mind that the Supreme Court agrees to hear less than 1 percent of the cases it is asked to hear each year. Usually, those cases involve critical constitutional issues that apply to numerous cases rather than one individual case.