As voters head to the ballot box in Indiana Tuesday, Hillary Clinton's campaign says it is bracing for a loss, an attempt at expectations-setting in a state where polls show her with a narrow lead.<br />Sanders has spent $1.8 million on advertising in Indiana.<br />Clinton has spent virtually nothing.<br />The state is also 86% white, according to the U.S. census, a group where Sanders tends to outperform Clinton.<br />And the open primary allows independents to vote in the Democratic primary, which has helped Sanders in past contests.<br />Several top Indiana Democrats predict she will eke out a narrow victory, despite the campaign's decision not to spend money on advertising here.<br />Sanders, meanwhile, is feeling good going into Tuesday's voting, his spokesman said.<br />They view the steelworkers union's recent endorsement as a big deal in this manufacturing state.