In addition to federal subjects in which fraud was discovered by the CEC, some results, such as those from Russia's ethnic republics of Tatarstan and Bashkortostan, showed highly unlikely changes in voting patterns between the two rounds of voting. This has aroused suspicions of fraud. However, any fraud that may have contributed to these discrepancies is unlikely to have had a material effect on the outcome of the election. One hypothesis that has been given for the dramatic increase in support that Yeltsin saw in some regions was that, prior to the second round vote, administrative pressure was applied in these regions to coerce voters into supporting Yeltsin.