Grassley didn't have any input in the healthcare bill even though he tried. Grassley wanted no rationing and no government bureaucrats getting in the way of the patient and doctor. Needless to say, Grassley is one of Obamacare's biggest critics today.
As for the link you posted. It seems that there is some rhetorical gymnastics going on if the left wing is going to blame Grassley for language he had written that has since been through "various revisions" and become "less clear".
Educate yourself...
Ruth Marcus - Paging Grassley's Gumption
The last, faint hope for truly bipartisan health reform rests with Sen. Chuck Grassley of Iowa -- and faint may be overstating the prognosis.
The 75-year-old Republican has been browbeaten by his leadership for collaborating with Montana Democrat Max Baucus, the chairman of the Finance Committee on which Grassley is the ranking Republican.
Grassley has been besieged by nervous constituents during this most tumultuous of August recesses. He's up for reelection next year and is worried about a primary challenge. He's eager to become the ranking member of the Judiciary Committee when his tenure on Finance is up, and is said to fear that he'll be denied the post if he goes wobbly on Democrats.
"There is tremendous pressure on both Chuck Grassley and Max Baucus to walk away" from health-care negotiations, one Republican senator told me. "That accounts for why you see Grassley doggedly going to these meetings, working very hard, but then he'll get nervous about it and say, 'Well, even if I support it, unless a majority of the caucus supports it, I won't vote for it.' I think those kinds of mixed messages reflect the tremendous pressure that he's under."
Senate Minority Leader Mitch McConnell of Kentucky and Minority Whip Jon Kyl of Arizona "are working this very hard," said one Democrat involved in the health-care talks. "They have berated [Grassley] directly about the degree of his participation so far, and they work hard to prevent other people from going along."
Grassley Endorses "Death Panel" Rumor: "You Have Every Right To Fear"
One of the three Republican senators working on a bipartisan health care bill perpetuated a particularly outrageous untruth about the legislation on Wednesday.
Appearing at a town hall in his home state of Iowa, Sen. Chuck Grassley told a crowd of more than 300 that they were correct to fear that the government would "pull the plug on grandma."
In making his remarks, Grassley becomes the latest in a string of GOP lawmakers to jump on a myth about the health care legislation produced by the House of Representatives. The most infamous statement was made last week by former Alaska Governor Sarah Palin, who declared that the President's health care plan would set up a "death panel" to determine whether or not to euthanize her son with Down Syndrome.
2009 -
PolitiFact's Lie of the Year: 'Death panels'
2010 -
PolitiFact's Lie of the Year: 'A government takeover of health care'