Sen. Lamar AlexanderAndrew (Lamar) Lamar AlexanderOvernight Health Care: Trump health chief backs CDC research on gun violence | GOP negotiators meet on ObamaCare market fix | Groups sue over cuts to teen pregnancy program GOP negotiators meet on ObamaCare market fix 30 million people will experience eating disorders — the CDC needs to help MORE (R-Tenn.) criticized President Obama for not including a Social Security entitlement reforms in his budget.

Obama hasn’t released his budget yet — that is expected early next month — but the White House announced Thursday that is would not include a chained consumer price index (CPI) to determine cost-of-living increases for Social Security recipients.

“Using the most accurate measure of inflation for entitlement spending and tax rates would be the simplest, fairest way to take a meaningful step toward fixing the federal debt,” Alexander said Friday.

In previous budgets, Obama has included such language — which Democrats oppose — as a sign of good faith in negotiating a larger deficit reduction deal with Republicans. But Obama was pressured by Democrats to remove the language since they say it reduces the deficit on the backs of the elderly and disabled.

“The president was exactly right to include it in last year's budget,” Alexander said. “His failure to do so this year makes confronting runaway mandatory spending even harder.”

Democrats on the other hand praised Obama for not including a chained CPI in his budget.

“It is great news that the president is responding to the concerns of so many Americans and won't include ‘chained CPI’ in his budget,” Sen. Jeff Merkley (D-Ore.) said. “The Social Security COLA already doesn’t reflect the real costs seniors face, and cutting it makes no sense.”

The chained CPI formula would lower cost-of-living rate increases, which is why Democrats oppose the idea. Democrats argue that the way to reduce the deficit is to instead increase taxes on the rich.