Most Americans consider midterm elections insignificant ; many do n't vote . Immigration reform would likely have withered on the legislative vine of gridlock had not Senate Democrats sent the House a comprehensive reform bill and kept pressure on the lower chamber to deal with the issue . Julian Zelizer : Midterms can make a big difference , and this year 's vote is huge . If Democrats lose Senate majority , Obama 's woes would only grow . Zelizer : The midterms are the most important election in years for both parties.
Most Americans consider midterm elections insignificant ; many do n't vote . Julian Zelizer : Midterms can make a big difference , and this year 's vote is huge . If Democrats lose Senate majority , Obama 's woes would only grow . Zelizer : The midterms are the most important election in years for both parties.