President Trump has approved an FBI investigation into Supreme Court nominee Brett Kavanaugh that "must be limited in scope and completed in less than one week."

Why it matters: The results of an FBI investigation could sway the votes of uncommitted senators either way. Investigators will likely talk to Mark Judge, who has agreed to cooperate in an investigation "confidentially." The investigation could give those senators the evidence they need to confirm Kavanaugh or kill the nomination — or an inconclusive report could leave them right back where they started.