The Obama Administration is deporting more people than ever, about 400,000 last year, and stepping up audits of businesses that employ undocumented non-citizens. Workplace raids are down, but they never made up more than 1%-2% of the total.
Almost half of deportations are of non-citizens convicted of criminal offenses, some serious and others not. Even someone with a permanent resident alien (i.e. a non-citizen with a "green card") can be deported for many criminal offenses, no matter how long the person has lived in the United States.
The President himself is apparently surprised at the extent to which the deportations continue to rise.
Meanwhile, reports from some time ago indicated that undocumented immigrants returning to their home countries due to a lack of employment are outnumbering those who are entering the United States. The total number of undocumented immigrants in the United States fell by about one in ninth (about 1.3 million) in the first year of the financial crisis. There is no reason to think that the economy has turned around in a way that would change that trend, so the total now may be in the vicinity of 10 million out of a total population of 300 million or so.
The economy is having twice as much of an effect as deportations.
Increased enforcement is resulting in the deportation people who would be helped by pending legislation like the DREAM Act, which provides legal status and a path to citizenship to young adults who grew up in the United States and graduated from high school here, if they then go on to college or military service. Most Democrats support the bill, but it isn't clear that it has filibuster proof majorities behind it.
Border patrol and border fence construction also continues unimpeded, even though overstayed visas are a much more common means of entry into the United States than illegal border crossings.
In short, anti-immigration forces in Congress seem to be getting more of what they want than they did in any prior administration, but prospects for liberalizing legal immigration or providing a path to legal status for undocumented aliens, which was supposed to be the other half of immigration reform, appears to have hit a dead end.