Hunter Biden Refuses GOP Subpoena, Offers Public Testimony Instead
- Hunter Biden defies GOP congressional subpoena, says he'll only testify publicly
- Republicans expect "full cooperation," may pursue contempt charges
- GOP alleges Biden business dealings show "influence peddling," no evidence of laws broken
- House authorizes impeachment inquiry to help enforce subpoenas
- Justice Dept. official Lesley Wolf expected for deposition with lawmakers Thursday