Rep. Kyrsten Sinema of Arizona and Rep. John Barrow of Georgia on Capitol Hill.
Stories this photo appears in:
Why the electoral battlefield is expanding
The surveys, which point to strong Democratic opportunities to capture Republican-held Senate seats in Arizona and Texas, might prove to be desert mirages by Election Day. But even the prospect of close Senate races in those ordinarily Republican-leaning states, shows how old political alignments are cracking as the parties build new coalitions of support.
