As she seeks the 2020 presidential nomination of the Democratic party, Sen. Elizabeth Warren is giving voters fair warning that she does not accept the Constitution’s limits on federal power. On Thursday the former Harvard law professor unveiled a plan to extract wealth from the country’s wealthiest citizens. According to a press release from her Senate office: United States Senator Elizabeth Warren (D-Mass.) today unveiled the Ultra-Millionaire Tax, a bold proposal to tax the wealth of the...