WASHINGTON —  President Bush dismissed concerns Thursday that the economy is headed into a recession and remained confident that an economic stimulus package will help the nation amid a lingering mortgage and credit crunch. “I don’t think we’re headed into a recession, but there’s no question we’re in a slowdown,” Bush told reporters at a White House press conference. Some economists say the country is nearing a recession, but Bush expressed his support for the economic stimulus package that Congress recently passed and he signed into law last month.