In a high-stakes Senate race in Maine, Democratic candidate Platner's historic primary win has Republicans worried. With a projected $384 million in spending, can grassroots support overcome billionaire-backed attack ads? Voters want REAL change, not establishment politics.

The ads, paid for by Collins's supporters, highlight the mounting controversies Platner has faced through out his primary campaign.

In a high-stakes Senate race in Maine, Democratic candidate Platner's historic primary win has Republicans worried. With a projected $384 million in spending, can grassroots…