President Obama will likely take some executive action this fall to reduce deportations or legalize some unauthorized immigrants. He recently ordered Jeh Johnson, Secretary of Homeland Security, to delay the release of a review of current deportation policy until after the summer.

A White House official revealed the reason for the delay: “[President Obama] believes there’s a window for the House to get immigration reform done this summer, and he asked the secretary to continue working on his review until that window has passed.”

President Obama has taken a much more conciliatory tone toward Republicans in his push for immigration reform. His 2014 State of the Union address asked Republicans to support reform without blaming them for obstructing it. The White House official’s statement that Obama will delay executive action until after the summer is consistent with that bipartisan tone. It also allows President Obama to appear to be working with Republicans on reform while leaving his policy options open prior to the 2014 elections.

There is no doubt that President Obama’s attitude is better than blaming Republicans for all immigration problems and is more likely to motivate House Republicans to pass some kind of reform, but the mere mention of executive action only deepens the distrust that many Republicans have for the president – not to mention the many legal issues it raises. Republicans are justifiably concerned that President Obama may not enforce any immigration law that is passed or may change it with executive actions.

The Obama administration has consistently piled on more complex rules and regulations for the H‑2A, H‑2B, and H‑1B work visas (with some exceptions that will actually liberalize the system) that make the legal migration system difficult to use. A new guest worker visa program created by Congress could be similarly stymied by rules and regulations promulgated by executive agencies. Some Republicans also complain about the president’s deportation policy. These are real concerns that are not mitigated by the president’s threats.

Many of President Obama’s adjustments to immigration enforcement have been disappointing and haven’t legalized as many unlawful immigrants as they could have. The president’s record on enforcing our harsh immigration laws is strict in contrast to his rhetoric and the stated goals of his executive actions.

However, only legislation can create a guest worker visa program and expand legal immigration enough to channel future immigrants into the legal market. Whatever executive actions the president decides to take, they will deal with problems that have emerged due to our restrictive immigration system that makes it virtually impossible for low and mid-skilled workers to immigrate. Expanding the scale and scope of immigration while diminishing the intensive regulatory oversight role of the federal government is a long-term solution in contrast to an executive action that is temporary at worst and at best seeds legal uncertainty.