Partisan politics and other differences, they say, have repeatedly blocked such action.

A reporter was repeatedly blocked today from reaching the area where the relief workers were killed.

But the union representing police officers has repeatedly blocked the idea in the Legislature.

My measures were repeatedly blocked by officials in other departments.

The military has repeatedly blocked civilian authorities' attempts to investigate these groups.

But the Senate has repeatedly blocked opening the refuge to drilling, a position it does not seem likely to change this year.

But creation of the park was blocked repeatedly by mining and agricultural interests in Nevada.

Democrats said the vote was a political ploy, because the Senate has repeatedly blocked the Republican plan.

But members of Parliament have repeatedly blocked the legislation, arguing that it is too soft on murderers.

Yet in New Jersey, the effort to make needles freely or more easily available has been blocked repeatedly over the years.