Laphonza Butler has been sworn in as the new California senator, filling the seat left vacant after the passing of Sen. Dianne Feinstein.  Butler "is going to be absolutely phenomenal… she leads with heart but is also a strategic thinker," Sen. Alex Padilla (D-CA) reacts. Sen. Padilla also comments on the downfall of Rep. Kevin McCarthy, immigration reform, and Hispanic Heritage Month. » Subscribe to MSNBC: on.msnbc.com/SubscribeTomsnbc Follow MSNBC Show Blogs MaddowBlog: msnbc.com/maddowblog ReidOut Blog: msnbc.com/reidoutblog MSNBC delivers breaking news, in-depth analysis of politics headlines, as well as commentary and informed perspectives. Find video clips and segments from The Rachel Maddow Show, Morning Joe, The Beat with Ari Melber, Deadline: White House, The ReidOut, All In, Last Word, 11th Hour, and Alex Wagner who brings her breadth of reporting experience to MSNBC primetime. Watch “Alex Wagner Tonight” Tuesday through Friday at 9pm Easte...