Silicon Valley has long pressed for change, and this year could bring a fix. Support is growing for a new startup visa that would let foreign-born entrepreneurs work with fewer hurdles. Talks are on in Washington about safeguarding the visa against fraud and phony companies, and ensuring that it would go to startup founders that look solid and might create jobs. Right now, there is bipartisan support for it. But the startup visa would likely get rolled into comprehensive immigration reform, and that path is unclear.