To force Walmart to either join a union or have a fair wage act placed upon it

I want to petition the Obama administration to help all people working for large companies but payed minimum wage. If you want to help the economy you have to help people who earn the least. Which makes up a higher percentage of people here in the US. Minimum wage workers are suffocating under taxes and barely able to make by because of minimum wage. A family with one person who works barely makes by living paycheck to paycheck. I would like to Obama administration to at least force A fair wage act on Walmart, McDonald's and various other companies that makes billions off these people. At that note it makes me wonder who really runs this country, the people and this government, or large faceless corporations and companies.