The Treasury yield curve is flattening, increasing concern among market watchers.
Risk-averse trading in December has dragged the benchmark 10-year Treasury yield down to 2.73 percent.
A mismatch between supply and demand in the Treasury market is likely to keep driving yields higher, he said.
An overt attempt by Donald Trump to unseat the Fed chair could elicit a harsh reaction from the markets.
The sheer weight of global savings will pressure yields lower,, Robert Tipp said.
As the bull market continues, some investors worry about political, financial and economic vulnerabilities.
As the market grows to a record size, participants remain on guard against signs of weakness.
The Treasuries yield curve is suddenly of high interest to investors and news consumers.
U.S. sanctions and tariff threats are driving yet more cash toward American markets.
The 10-year Treasury yield rose above 3 percent for the first time since June.