But at a hearing of a Senate commerce subcommittee on Thursday, senators called for changes but also voiced strong support to continue subsidies for Amtrak.
Several senators voiced the fear that they would be victimized by negative ads that said they had voted to send money to the Communists.
The industry and the Bush administration had proposed that insurers take responsibility for the first $10 billion in losses, and several senators voiced support for that concept.
DATA encourages Americans to contact senators and other legislators and elected officials to voice their opinions.
But senators voiced concern that Mr. Armstrong's blunt approach pushed the limits of corporate advocacy.
Several younger senators in the group voiced qualms about Galba.
Some senators, like Spencer Abraham, a Michigan Republican who said the proposed merger offered "an exciting marriage," voiced few qualms.
A senator, Sak Korsaengrueng, voiced emerging public doubts.
But only one Democratic senator, Charles E. Schumer of New York, voiced support for the exchange's plan.
Border-state senators voiced pleas for Federal relief from a new flood of illegal immigrants armed with fake identification papers.