ABC News reports that state Sen. Mark Messmer is projected to win the crowded GOP primary in Indiana's 8th District, which is currently held by Rep. Larry Buschon. Messmer defeated former Rep. John Hostettler and several other candidates in a race that attracted significant outside spending.

—Jacob Rubashkin, Inside Elections

Indianapolis’s Marion County is reporting votes now in Indiana’s 6th, too. And according to the AP, Shreve is beating Speedy there 38 percent to 29 percent, likely cutting off any chance for the more conservative Speedy to prevail.

—Nathaniel Rakich, 538

The Associated Press has projected that state Sen. Mark Messmer has won the GOP nomination in the 8th District. He will likely win the general election this fall. ABC News is not reporting a projection in the race yet, but Messmer has about 43 percent of the vote — 27 percent more than his closest challenger — with 40 percent of the expected vote reporting.

—Jacob Rubashkin, Inside Elections

We’re up to about half of the expected vote counted in Indiana‘s 6th District, and Jefferson Shreve is still holding steady in the lead with 29 percent. Jamison Carrier and Mike Speedy are running behind at 21 and 20 percent, respectively.

—Jacob Rubashkin, Inside Elections

Another ex-congressman may make a comeback in southwestern Indiana's 8th District — once one of the most competitive seats in the country but now a reliably Republican seat. The two front-runners in the GOP primary here appear to be state Sen. Mark Messmer and former Rep. John Hostettler. Establishment and tea party Republican groups have invested heavily in this race: America Leads Action has spent $1.6 million to help Messmer and hurt Hostettler, and Protect Freedom PAC is airing ads for Hostettler.

But the main divide in this race seems to be less about governing philosophy and more about foreign policy. For instance, Protect Freedom PAC — which represents former Rep. Ron Paul's libertarian wing of the party — may be with Hostettler because he and Paul were two of only six Republicans who opposed the Iraq war back in 2002. And Hostettler's record on Israel has provoked strong opposition from the American Israel Public Affairs Committee and Republican Jewish Coalition. Citing anti-Israel votes Hostettler took in Congress as well as a book he wrote that blamed the Iraq war on Jewish Americans' efforts to help Israel, these two groups have dropped $2.2 million to attack Hostettler or boost Messmer.

In total, pro-Messmer, anti-Hostettler outside groups have outspent pro-Hostettler, anti-Messmer groups by a whopping $5.1 million to $793,000. (And it's not like Hostettler himself has been able to fight back; Messmer has outraised him $763,000 to $41,000.)

Don't write off two other candidates, either. Surgeon Richard Moss, who has pledged to join the Freedom Caucus, has raised $556,000, while 28-year-old Army reservist Dominick Kavanaugh took in $528,000. That said, given the financial disparity, any candidate other than Messmer has to be considered an underdog.

—Nathaniel Rakich, 538