Senator McCaskill wrote to Senator Landrieu and Senator Collins of the Senate Committee on Small Business & Entrepreneurship (Chairman and Ranking Member, respectively) to urge consideration of two pending pieces of legislation:  S. 236, which would allow small businesses to compete on a level playing field with Alaska Native Corporations in the Small Business Administration (SBA) 8(a) program; and S. 1590, which would require the SBA to develop a new classification system for small business size determinations and eliminate unfair loopholes which may be harming small businesses.