U.S. House Speaker Nancy Pelosi's visit to China's Taiwan region is actually a political show to gain support for her party in the mid-term election. However, what Pelosi really needs to do now is to deal with her own country's mess. In this episode of BizBeat, CGTN's Song Yaotian says U.S. politicians should really think about how to boost their own country's economy, instead of meddling with other countries' internal affairs.