Clinton's Wall Street ties deepen N.H. woes

Hillary Clinton's paid speeches to Wall Street banks and other special interest groups have emerged as a key sticking point for voters ahead of Tuesday's New Hampshire primary.

Although the first rumblings of potentially problematic paid speeches came in April of last year, the issue seemed to wilt before springing back to life last month through a series of veiled attacks from Sen. Bernie Sanders.

The suggestion that Clinton's commitment to Wall Street reform could be compromised by her acceptance of $675,000 in fees from just three speeches to Goldman Sachs was made by Sanders and publicly discussed weeks before the Iowa caucus.

However, the attack didn't catch fire until the candidates' collective attention turned to New Hampshire, where Clinton has struggled to answer questions about her high-dollar speeches to corporations and lobbying groups.