Both Ed Carpenter and Tony Kanaan have enjoyed strong results in previous races at Iowa Speedway.
Simon Pagenaud and Mikhail Aleshin finished sixth and seventh in this past weekend's race at Pocono.
Juan Pablo Montoya has returned to victory lane in the Verizon IndyCar Series.
A myocardial contusion will cause Jack Hawksworth to not be able to race at Pocono today.
Gabby Chaves secured the Indy Lights win at Pocono Saturday.
Carlos Huerta's car was found to be illegal after his first win.
Christopher DeHarde's review of the five drivers he felt needed to perform in Houston this weekend.
Simon Pagenaud has won for the second time in 2014.
INDYCAR has fined Andretti $2,500 and has placed him on probation for three races.
Colombians go 1-2-3 in the opening race in Houston.
Juan Pablo Montoya feels "the wins are coming" with Team Penske
Honda first, Castroneves' Chevrolet is second
Tight, tough track, damp weather, hot and humid conditions could make for a long weekend