Senate Democrats said that they were not sure exactly what was in a deal that the majority leader said would surmount a disagreement over a proposed government-run health plan, but they voiced guarded optimism that it would ultimately help them pass major healthcare legislation, the New York Times reports. Democrats said the preliminary agreement suggested that they would be able to resolve some differences over the public plan, insurance coverage for abortions, and other disputes, including how to pay for the nearly $1 trillion bill. President Obama, however, hailed the tentative deal as a breakthrough and said he would support it, the Times reports.