Hi, native speakers of English! I've just read other threads, but I'm not quite clear if these two expressions would be interchangeable in the following context: Two journalists are debating the government's policies. One of them is in favour of what the government is doing to get the country out of the economic crisis it's in, and the other is not. The journalist who is critical of the government's policies (and therefore in agreement with the opposition party) is accused by the other one that his is not the right attitude because he and the whole of the opposition party are doing nothing productive for the country, just making it harder for the government, who are doing their best. What would the journalist who is in favour of the government say?: 1) The opposition party is just throwing a spanner in the works. 2) The opposition party is just putting a spoke in the government's wheel. Thank you in advance.