The presidential candidates have been forced to offer solutions to a mounting U.S. housing squeeze.
The muni market tax exemption is viewed as a possible target if funds are needed to pay for more Trump tax cuts.
The new tolls are expected to generate $1 billion in revenue a year.
Muni funds experienced $92 million of outflows the week of April 5 alone, according to fund flows data.
The $4 trillion state and local debt market is showing increasing interest in such debt.
This is one of the most politically exposed asset classes.
Republican opposition to ESG movement has spread to the credit rating companies.
They join Texas Republicans and prominent investors in panning some ESG methodologies.
Federal agencies could still renew or extend the mandate before it expires.
Governors from California to New York are proposing tax cuts to give drivers some relief.