House Speaker Nancy Pelosi on Thursday called for the resignation of the US Capitol Police chief and said the House Sergeant at Arms has told her he is submitting his resignation amid criticism over <a href=”http://www.cnn.com/2021/01/06/politics/capitol-riots-what-happened/index.html” target=”_blank”>an apparent lack of preparedness</a> to deal with <a href=”https://www.cnn.com/2021/01/06/politics/us-capitol-lockdown/index.html” target=”_blank”>Wednesday’s violent mob</a> on