Political advantage can be fleeting. A couple of months ago, during the winter quarter, job gains looked to be picking up, unemployment was easing lower, and President Obama’s re-election hopes looked more secure. But things sure have changed.

In recent weeks, a whole bunch of new economic stats have been pointing to a sputtering economy — maybe even an inflation-prone, less-than-2-percent-growth recession. Stocks have dropped for five straight weeks, as they look toward slower growth, jobs, and profits out to year-end. And Friday’s jobs report didn’t buck these trends.

“Anemic” is the adjective being tossed around by the media. According to the Labor Department, nonfarm payrolls increased a meager 54,000 in May, while private payrolls gained only 83,000. A week or two ago, Wall Street expected 200,000-plus new jobs. Didn’t happen.

Perhaps the most telling weakness in the jobs report comes from the household survey, which is made up of self-employed workers. Think of mom-and-pop-owned stores and small businesses. Think of the Main Street entrepreneurial families who make up the backbone of the economy, and for that matter the country. And they vote, too.

Well, household jobs increased by a paltry 105,000 in May, after falling 190,000 in April. The jobless rate is determined by the household survey, and you really need a couple hundred thousand new household jobs a month — at least — to lower unemployment. And you really need about 300,000 household jobs a month to put a little torque behind the Main Street economy. But with the lackluster May report, the unemployment rate edged up to 9.1 percent from last month’s 9 percent and March’s 8.8 percent.

Suddenly President Obama has gone from re-elect to big trouble. The economic rug has been pulled out from underneath him.

So what changed in the last couple of months or so? Answer: A nasty oil-, gasoline-, and commodity-price shock. It’s eating away at economic growth and jobs. It’s stalling the economy. And it has cut into consumer real incomes and business profits.

Much of this problem can be traced to the failure of the Federal Reserve’s QE2 pump-priming campaign. QE2 has not produced growth, but it has produced inflation. In fact, the consumer price index over the past four or five months has been running close to 6 percent annually.

And most of that new Fed money has served merely to depreciate the dollar. And most of those cheaper dollars are on deposit at the Federal Reserve, where banks are earning 25 basis points for safety and risk aversion. In other words, the majority of that new money is not circulating throughout the economy. It’s a boneheaded Fed stimulus, and it has done more harm than good.

That said, in a larger sense, the failure to ignite small-business job creation has to be laid at the doorstep of the Obama administration, and the economic policies that threaten higher taxes and regulations virtually across the board. On Thursday, the president again promised House Democrats to raise taxes on successful small-business owners. What a great new idea.

So mom and pop don’t feel like taking a risk in this environment. Higher tax-and-regulatory costs have put these entrepreneurs in survival mode. They’re playing their economic cards so close to the vest, business activity has buttoned up tight.

What you want is for people to take their suit jackets off, roll up their shirt sleeves, and go out there and build. But people are hunkering down, not building.

Bear with me for a few more jobs stats.

Since the household-survey employment peak back in November 2007, 6.8 million jobs have been lost. Since the so-called end of the recession in June 2009, 199,000 jobs, on balance, have disappeared. And so far this year, household employment has increased by a total of 573,000, which is about 115,000 a month. That’s only one-third of what’s needed to bring down unemployment significantly.

The bottom line is that there hasn’t really been a jobs recovery. President Obama is going to have to own that. But the question is, both in Congress and on the campaign trail, does the GOP have a pro-growth jobs program that will get Main Street mom and pops to roll up their sleeves once again?

Larry Kudlow is the host of CNBC’s “The Kudlow Report.”