Federal Reserve Governor WALLER said he supports a December rate increase and warned he would back a 50bp hike if inflation accelerates, tying his stance to October CPI due from the BLS later Tuesday. He said the US economy is strong and the labor market stable but inflation remains too high; if October core CPI prints around 0.3% MoM or higher—similar to the prior two months—he would favor stronger action, arguing a routine 25bp move could risk the Fed's credibility.