The majority of EP political group leaders warned that any Treaty change would need to carried out in an open manner, including national parliaments and the EP.
Vairums Eiropas Parlamenta politisko grupu līderu brīdināja, ka jebkuras izmaiņas ES līgumā jāveic atklātā veidā, iesaistot gan valstu parlamentus, gan Eiropas Parlamentu.