Linking to a report that named CIA officer Eric Ciaramella as the Ukraine whistleblower, Republican Kentucky Sen. Rand Paul called on members of the House of Representatives to subpoena him.Citing a Wednesday report by RealClearInvestigations, the GOP senator said the whistleblower's ties to Joe Biden necessitated questioning about Hunter Biden's role on the board of Ukrainian energy firm Burisma."It is being reported that the whistleblower was Joe Biden’s point man on Ukraine," Paul said in a Thursday tweet, linking to the report. "It is imperative the whistleblower is subpoenaed and asked under oath about Hunter Biden and corruption."