This progress is the most positive sign yet that the senators will reach their goal of unveiling a package when they return in early April from a two-week recess. …

Several sources close to the talks told POLITICO that since the breakdown, labor, business and staff have worked to iron out some of the biggest issues, including wages and whether construction industry workers would be exempt from the program. …

Sen. Charles Schumer told reporters in Nogales, Ariz., on Wednesday that the negotiators were on track and had 90 percent agreement on the entire package, which will include a pathway to citizenship and border security.

“The bottom line is we are very close. I’d say we are 90 percent there,” Schumer said. “We have a few little problems to work on … but we’re very hopeful that we will meet our deadline.” …

But the groups have made significant progress on the wage issue that jeopardized the talks last Friday, according to sources familiar with the process.