Original sentence: In 2014, initiatives by Basque and Treviño's local authorities to assert their will for at least a cooperation with Álava have been rejected by the highest authorities in Burgos (Spanish Conservatives, with the support of the Socialists in this respect)
Edited sentence: By 2014, initiatives by Basque and Treviño's local authorities to assert their will for at least a cooperation with Álava have been met on the other hand with refusal, as well as high-toned and defiant replies on the part of the highest authorities in Burgos (Spanish Conservatives, with the support of the Socialists in this respect)